Dizzee Rascal has revealed that he is already working on the follow-up to recent album Tongue 'N' Cheek. The 'Bonkers' rapper insisted that the new record will only be released next year because of his busy schedule. "I've had my holidays. It's back to the grind again now - keep it moving," he told the BBC. "I've been in the studio today cooking up new tracks doing bits and bobs. Hopefully I'll have an album out next year but I'm touring a lot this year." Rascal added that he would "love to" perform at this year's Glastonbury festival. Organiser Emily Eavis recently hinted that the star will join confirmed headliners U2, saying "we've got to have Dizzee, that's a given".